/Engine/Plugins/Online/OnlineSubsystem/Source/Public/OnlineSessionSettings.h
Retrieve a session setting's advertisement type
the advertisement type for the setting
[EOnlineDataAdvertisementType::Type](API\Plugins\OnlineSubsystem\EOnlineDataAdvertisementType__Ty-) GetAdvertisementType ( [FName](API\Runtime\Core\UObject\FName) Key ) const